Extensible radiator-brush.



S. PARKER.

EXTENSIBLE RADIATOR BRUSH.

APPLICATION. FILED JULY 6. 1914.

1,138,244. Patented May 4., 1915.

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outer STANLEY PARKER, OF NEW BRITAIN, CONNECTICUT.

EXTENSIBLE RADIATOR-BRUSH.

Specification of Letters Patent.

Patented May 4, 1915.

Application filed July 6, 1914. Serial No. 849,359.

To all whom it may concern:

Be it known that I, STANLEY- PARKER, a citizen of the United States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Extensible Radiator-Brushes, of which the following is a specification.

My invention relates to improvements in extensible radiator brushes, and the object of my improvement is to produce a brush that is suitable for use in cleaning between the coils of radiators, particularly of the kind used for heating the household, and which is extensible in character so as to facilitate passing the brush proper either crosswise or lengthwise between the different coils.

In the accompanying drawing: Figure 1 is a side elevation of my improved extensible radiator brush. Fig. 2 is a similar view of the same in. the extended position. Fig. 3 is a similar view on an enlarged scale of part of the same, showing one of the joints of the telescoping members. Fig. 4 is a sectional view of the same. Fig. 5 is a sectional view showing the connection for the brush proper.

My extensible radiator brush comprises a handle portion 10 and a brush proper 11 at one end thereof. The brush proper 11 may be either a two sided brush or as shown a brush having bristles on all sides, and the same may be secured to the handle portion 10 by a separable joint 12, which as shown consists in a screw threaded connection. The handle portion 10 is made extensible by being built up of a plurality of telescoping parts, as shown, these being three in number.

The telescoping joint I prefer to make such that when in extended position the parts will be held essentially positively in such position and I may do this in the manner shown and which is as follows: The inclosing tubular portion 13 is slightly larger than the inner member 14 inclosed thereby to provide a space 15 be tween the same in which is housed a spring 16. The ends of the spring 16 abut against the annular collar 17 on the end of the parts are placed in such position. Pressing the spring latch 19 inwardly permits of entering the same within the tubular portion 13 so that the parts may be brought to the closed position.

For crosswise use the brush may be in closed position or in the open position, it being understood that the particular utility of the extensible feature is in the use longitudinally between the arms of the coils. The length in the extended position should of course be not less than half the length of the radiator, and in many cases would .be nearly if not quite the full length of the same.

I claim as my invention:

As a new article of manufacture, a brush suitable for cleaning between the coils of a radiator comprising a brush portion and a handle portion at one end thereof, the said handle portion being extensible and collapsible, comprising a plurality of members comprising overlapping ends of the said members housed one within the other and connected together by telescopic joints, and the said joints being provided with means for locking the members in definite relative positions when in extended position comprising in each case a latch on the inner of the said members composing the joint, a collar on the end of the outer of the said members, and a spring serving to hold the said latch engaged with the said collar, and housed between the said overlapping ends.

- STANLEY PARKER.

Witnesses:

MARGARET A. GoRMAN, W. J. WORAM Jr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

